From 287a0ab91d25ca982f895a76402e5893b47ed7a6 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 19 Mar 2010 18:07:23 +0000 Subject: Btrfs: kill max_extent mount option As Yan pointed out, theres not much reason for all this complicated math to account for file extents being split up into max_extent chunks, since they are likely to all end up in the same leaf anyway. Since there isn't much reason to use max_extent, just remove the option altogether so we have one less thing we need to test. Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/super.c | 23 +++-------------------- 1 file changed, 3 insertions(+), 20 deletions(-) (limited to 'fs/btrfs/super.c') diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 9ac612e6ca6..d11b12fc086 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -64,10 +64,9 @@ static void btrfs_put_super(struct super_block *sb) enum { Opt_degraded, Opt_subvol, Opt_subvolid, Opt_device, Opt_nodatasum, - Opt_nodatacow, Opt_max_extent, Opt_max_inline, Opt_alloc_start, - Opt_nobarrier, Opt_ssd, Opt_nossd, Opt_ssd_spread, Opt_thread_pool, - Opt_noacl, Opt_compress, Opt_compress_force, Opt_notreelog, Opt_ratio, - Opt_flushoncommit, + Opt_nodatacow, Opt_max_inline, Opt_alloc_start, Opt_nobarrier, Opt_ssd, + Opt_nossd, Opt_ssd_spread, Opt_thread_pool, Opt_noacl, Opt_compress, + Opt_compress_force, Opt_notreelog, Opt_ratio, Opt_flushoncommit, Opt_discard, Opt_err, }; @@ -79,7 +78,6 @@ static match_table_t tokens = { {Opt_nodatasum, "nodatasum"}, {Opt_nodatacow, "nodatacow"}, {Opt_nobarrier, "nobarrier"}, - {Opt_max_extent, "max_extent=%s"}, {Opt_max_inline, "max_inline=%s"}, {Opt_alloc_start, "alloc_start=%s"}, {Opt_thread_pool, "thread_pool=%d"}, @@ -188,18 +186,6 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) info->thread_pool_size); } break; - case Opt_max_extent: - num = match_strdup(&args[0]); - if (num) { - info->max_extent = memparse(num, NULL); - kfree(num); - - info->max_extent = max_t(u64, - info->max_extent, root->sectorsize); - printk(KERN_INFO "btrfs: max_extent at %llu\n", - (unsigned long long)info->max_extent); - } - break; case Opt_max_inline: num = match_strdup(&args[0]); if (num) { @@ -529,9 +515,6 @@ static int btrfs_show_options(struct seq_file *seq, struct vfsmount *vfs) seq_puts(seq, ",nodatacow"); if (btrfs_test_opt(root, NOBARRIER)) seq_puts(seq, ",nobarrier"); - if (info->max_extent != (u64)-1) - seq_printf(seq, ",max_extent=%llu", - (unsigned long long)info->max_extent); if (info->max_inline != 8192 * 1024) seq_printf(seq, ",max_inline=%llu", (unsigned long long)info->max_inline); -- cgit v1.2.3